As a fallback you can try to use another tool like Exchange Server Recovery Toolbox for email recovery exchange server 2003. Here is the link to their website.
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Have just spent most of this week getting our e2k server up and running again. What about backups? We spent 2 days running eseutil /p and isinteg - finally got the information stores mounted but...

but if I have avast that they will not interfere with one another? it is best to leave avast or Windows Defender

thank you for sharing this information